WebJun 20, 2012 · If the wire rope surface is clean, re-lubrication can also be made with spray cans of specially formulated lubricant which penetrates the inside of a rope. ... Sheaves should be checked periodically for wear in the grooves which may cause pinching, abrasion, and bird-caging of the rope. If the groove shows signs of rope imprints the sheave must ... WebBird caging. The twisting of fiber or wire rope in an isolated area of the rope in the opposite direction of the rope lay, thereby causing it to take on the appearance of a bird cage. Braided wire rope. A wire rope formed by plaiting component wire ropes. Bridle wire rope sling. A sling composed of multiple legs with
Hoisting & Rigging - Princeton University
WebBird caging is a severe form of wire rope distortion that causes the individual outer strands of a cable to unravel and expand, creating a bird cage shape at the damage site. Bird caging is usually caused by … WebWire rope is a machine, and a rather complex machine. There are no precise rules to determine exactly when a wire rope sling has passed its service or expiration date. … binneford holiday lodges
Selection, Use, and Inspection of Slings - Princeton University
http://www.ranknfile-ue.org/h&s0396.html WebBIRD-CAGING IN WIRE ROPE. A theory which predicts when a wire in an impacted strand will separate from the core wire is presented. The condition must occur if a strand is to form a bird cage. It is shown that it is possible to separate even if the axial strain is positive. The wires can separate, due to twisting, with a reduction in tensile ... WebJun 1, 2009 · Again, various standards specify various limits on allowable loss of rope diameter, stating that the rope should be discarded if between 6 and 10% of the diameter of the rope has been lost. Defects such as bird caging, kinking, corrosion and flattening or crush damage should be examined and their effect on the strength of the wire evaluated. binned statistic python